[dconf] build: Note we don't support srcdir != builddir

[Colin Walters <walters src gnome org>]

commit 3bd2e9c8c37468eec6067a40ef2e66ef7372ac43
Author: Colin Walters <walters verbum org>
Date:   Fri Jan 20 17:08:52 2012 -0500

    build: Note we don't support srcdir != builddir

 configure.ac |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index d580d75..9a2dcdf 100644
--- a/configure.ac
+++ b/configure.ac
@@ -16,6 +16,11 @@ if test "${CFLAGS+yes}" != "yes"; then
   CFLAGS='-O2 -g -Wall -Wwrite-strings -Wmissing-prototypes -fno-common'
 fi
 
+dnl http://people.gnome.org/~walters/docs/build-api.txt
+dnl The vala-automake integration blows up currently
+dnl because it expects C files in the srcdir, not the builddir
+echo \#buildapi-variable-no-builddir >/dev/null
+
 # Check for programs
 AC_PROG_CC
 AM_PROG_VALAC([0.17.0])